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A method for cyclic and tadpole-shaped polymers

文献类型:期刊论文

作者Tang, Qingquan; Zhang, Ke
刊名POLYMER INTERNATIONAL
出版日期2015-08-01
卷号64期号:8页码:1060-1065
关键词cyclic polymer tadpole-shaped polymer reversible addition-fragmentation chain transfer polymerization bromomaleimide-thiol substitution reaction
英文摘要Reversible addition-fragmentation chain transfer polymerization (RAFT) was used to produce well-defined telechelic poly(N-isopropylacrylamide) (PNIPAM) with dibromomaleimide and dithiobenzoate groups at each end of the polymer chain by virtue of the functional RAFT agent 3,4-dibromo-1-(4-cyano-4-(phenylcarbonothioylthio)pentanoic)-2,5-dihydro-1H-pyrrole-2,5-dione. Cyclic PNIPAM was then obtained using an in situ intramolecular bromomaleimide-thiol substitution reaction after NaBH4 reduction of the dithiobenzoate end group to release a thiol group. In this ring-closure process, another bromo substituent on the maleimide group survived, being a single reactive site for post-functionalizing the cyclic PNIPAM by a second bromomaleimide-thiol substitution reaction. After being reacted with 2-aminoethanethiol, the resultant amino-functionalized cyclic PNIPAM was further demonstrated as a building block to construct a tadpole-shaped block copolymer by coupling with linear succinimidyl ester end-functionalized poly(ethylene oxide) based on active ester click chemistry. (c) 2015 Society of Chemical Industry
收录类别SCI
语种英语
公开日期2015-11-02
源URL[http://ir.iccas.ac.cn/handle/121111/27937]  
专题化学研究所_高分子物理与化学实验室
作者单位Chinese Acad Sci, Inst Chem, State Key Lab Polymer Phys & Chem, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714
Tang, Qingquan,Zhang, Ke. A method for cyclic and tadpole-shaped polymers[J]. POLYMER INTERNATIONAL,2015,64(8):1060-1065.
APA Tang, Qingquan,&Zhang, Ke.(2015).A method for cyclic and tadpole-shaped polymers.POLYMER INTERNATIONAL,64(8),1060-1065.
MLA Tang, Qingquan,et al."A method for cyclic and tadpole-shaped polymers".POLYMER INTERNATIONAL 64.8(2015):1060-1065.

入库方式: OAI收割

来源:化学研究所

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